<template>
    <div>
        <el-row>
            <el-col :span="5">
                <div class="tree">
                    <el-input placeholder="输入关键字进行过滤" v-model="filterText">
                    </el-input>
                    <el-tree @node-click="handlerClick" class="filter-tree" :data="EngData" :props="defaultProps"
                        :filter-node-method="filterNode" ref="tree">
                    </el-tree>
                </div>
            </el-col>
            <el-col :span="19">
                <div v-if="params.device_id" class="table">
                    <el-form :inline="true" :model="form">
                        <el-form-item>
                            <el-date-picker value-format="timestamp" v-model="form.time" type="datetimerange"
                                :picker-options="pickerOptions" range-separator="至" start-placeholder="开始日期"
                                end-placeholder="结束日期" align="right">
                            </el-date-picker>
                        </el-form-item>
                        <el-form-item>
                            <el-button type="primary" @click="toSearch">搜索</el-button>
                        </el-form-item>
                    </el-form>
                    <!-- 表格  -->
                    <el-table :data="monitorData" style="width: 100%" :row-class-name="tableRowClassName">
                        <el-table-column prop="insert_time" label="日期" width="180" align="center">
                            <template v-slot="scope">
                                <div>
                                    {{ scope.row.insert_time | fmtDate }}
                                </div>
                            </template>
                        </el-table-column>
                        <el-table-column prop="tsp" label="tsp" width="180">
                        </el-table-column>
                        <el-table-column prop="pm10" label="pm10">
                        </el-table-column>
                        <el-table-column prop="pm25" label="pm2.5">
                        </el-table-column>
                        <el-table-column prop="temperature" label="温度">
                        </el-table-column>
                        <el-table-column prop="humidity" label="湿度">
                        </el-table-column>
                        <el-table-column prop="wind_direction" label="风向">
                        </el-table-column>
                        <el-table-column prop="wind_speed" label="风速">   
                        </el-table-column>    
                    </el-table>
                    
                    <!-- 分页组件 -->
                    <el-pagination
                        background
                        @size-change="handleSizeChange"
                        @current-change="handleCurrentChange"
                        :current-page="params.page"
                        :page-sizes="[10, 20, 50, 100]"
                        :page-size="params.pageSize"
                        layout="total, sizes, prev, pager, next, jumper"
                        :total="total">
                    </el-pagination>
                </div>
                <div v-else style="line-height: 50px;color: red;font-size: 20px;text-align: center;">请点击设备查看数据</div>
            </el-col>
        </el-row>
    </div>
</template>
<script>
import { get } from '@/utils/request'
export default {
    data() {
        return {
            filterText: '',
            defaultProps: {
                children: 'children',
                label: 'name'
            },
            // 表格数据源 
            monitorData: [],
            // 表单数据对象 
            form: { time: [] },
            // 树形结构展示数据 
            EngData: [],
            // 快捷选项配置项 
            pickerOptions: {
                shortcuts: [{
                    text: '最近一周',
                    onClick(picker) {
                        const end = new Date();
                        const start = new Date();
                        start.setTime(start.getTime() - 3600 * 1000 * 24 * 7);
                        picker.$emit('pick', [start, end]);
                    }
                }, {
                    text: '最近一个月',
                    onClick(picker) {
                        const end = new Date();
                        const start = new Date();
                        start.setTime(start.getTime() - 3600 * 1000 * 24 * 30);
                        picker.$emit('pick', [start, end]);
                    }
                }, {
                    text: '最近三个月',
                    onClick(picker) {
                        const end = new Date();
                        const start = new Date();
                        start.setTime(start.getTime() - 3600 * 1000 * 24 * 90);
                        picker.$emit('pick', [start, end]);
                    }
                }]
            },
            params: {
                page: 1,
                pageSize: 10,
                device_id:0,
                engineer_id:0 
            }
        }
    },
    watch: {
        // 监听用户输入框输入的值并进行过滤 
        filterText(val) {
            this.$refs.tree.filter(val);
        }
    },
    methods: {
        // 点击节点触发 
        handlerClick(val,node){
            // console.log(val);
            // 判断点击的是设备  将设备id 工程id page pageSize传给后端 
            if(!val.children){
                this.params.device_id = val.id;
                this.params.engineer_id = val.engineer_id;
                this.getMonitor();
            }   
        },
        // 搜索 
        toSearch(){
            this.params.page = 1;
            this.getMonitor();
        },
        // 封装方法获取监测历史数据
        async getMonitor() {
            let temp = {
                ...this.params
            };
            // 如果传了时间  
            if(this.form.time){
                temp.begin_time = this.form.time[0],
                temp.end_time = this.form.time[1]
            }
            let res = await get('/monitor/pageQuery',temp);
            console.log(res, '-------');
            this.monitorData = res.data.list;
        },
        // getData(){
        //     // axios 基于promise的http客户端 
        //     get().then((res)=>{
        //         // 处理业务逻辑 
        //         this.xxx = res.data;
        //     })
        // },
        // 封装方法获取工程设备树 
        async getEngDevData() {
            let res = await get('/engineer/findEngineerDeviceTree');
            console.log(res, '88888');
            this.EngData = res.data;
        },
        filterNode(value, data) {
            // data是树形结构数据 
            if (!value) return true;
            // value输入框输入的值 
            // 返回就是包含输入框关键字的label(节点)  
            return data.name.indexOf(value) !== -1;
        },
        tableRowClassName({ row, rowIndex }) {
            // console.log(rowIndex)
            if (rowIndex % 2 == 0 || rowIndex == 0) {
                return 'warning-row';
            } else {
                return 'success-row';
            }
            return '';
        }
    },
    created() {
        this.getEngDevData();
        this.getMonitor();
    }
}
</script>
<style lang="scss" scoped>
.tree {
    height: calc(100vh - 60px);
    padding-right: 10px;
    border-right: 1px solid #ececec;
    margin-right: 10px;
}

::v-deep .el-table .warning-row {
    background: oldlace;
}

::v-deep .el-table .success-row {
    background: #f0f9eb;
}
</style>